Q:How can the exhaust pipe of a gas water heater be insulated by going through the glass?

Gas water heater exhaust pipe are now dual structure: the inner tube is the exhaust pipe, the fan will strong combustion exhaust water heater forcibly discharges the indoor air inlet pipe; the outer tube is, the outer air (oxygen) gas suction water heater for combustion.

Q:What are the types of insulation materials used in pipes and equipment?

In buildings, materials used to control the flow of heat inside the building are called heat insulation materials, and materials used to prevent outdoor heat from entering the room are called heat insulation materials. Insulation, thermal insulation materials insulation materials called duncan. The commonly used insulation materials can be divided into two categories: organic and inorganic. According to its shape, and can be divided into fibrous, porous, microporous, bubble, granular, layered and so on, the following are some of the more common materials are briefly introduced.

Q:Is the calorimeter for building materials calorific value?

Calorific value calorimeter for building materials is used to determine the calorific value of building combustible materials such as stone, wood, concrete, and even dispersed mineral wool and polymers. [standard] group will oxynitride calorimeter specimen is placed in the specific quality of a constant volume, in order to test the temperature rise test as the foundation, considering all the heat loss and latent heat of vaporization, heat of combustion calculation sample.

Q:External wall insulation rock wool board construction points and matters needing attention, know how much?

Rock wool, also called asbestos, is a kind of mineral cotton. It is made of natural rock and mineral and is made of fluffy, short and fine fiber.

Q:What is mineral fiber cotton? Yes, it's insulation.

Mineral fiber cotton is a kind of cotton fiber which is made from various mineral raw materials by melting and fiber forming and by surface treatment with different organic and inorganic reagents.

Q:Why should the insulation board be spliced when it is installed?

Thermal insulation materials are generally used to guide heat coefficient less than or equal to 0.2 of the material. Thermal insulation material development is very fast, and in industry and building the use of good insulation technology and materials, often can get twice the result with half the effort. Each ton of mineral cotton insulation used in the building saves one ton of oil a year.

Q:8cm what is the sound volume of the soundproof cotton?

Restate the professional point of view, the sound-absorbing material as insulation, sound-absorbing insulation materials or when used is not scientific. In both sound and sound (such as the design of reverberation time) when the need to use composite insulation board and sound-absorbing materials, can not only ensure the system sound transmission coefficient is small, and ensure the sound reflection weakened reach, sound insulation and sound absorption cream effect.

Q:Which is better, roofing rock wool or glass wool?

Glass wool than low density rock wool, slag ball less content, low thermal conductivity, long service life, high toughness fiber, but the maximum use temperature of high rock wool up to 600 degrees Celsius, glass wool is only 260 degrees celsius.

Q:Fireproof rock wool board can be used as firewall?

You need to know what material the firewall is made of What are its standards and requirements? What's the function of it? When you know all about it, you won't take a piece of board to make a wall!

Q:What are the building energy saving materials?

At present, China's common energy-saving insulation materials are mainly rock wool, glass wool, polystyrene foam, cement, polystyrene board, silicate composite insulation mortar.